Animals from the Philadelphia Zoo trek to the airport to help decrease stress for passengers. – CBS News

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The Transportation Security Administration saw its busiest day ever on June 30, screening 2.8 million passengers. The hustle and bustle is stressful for some, prompting the Philadelphia International Airport to ask for “animal assistance.” Once a month, the nation’s first zoo takes some of its animals on a trek to the Philadelphia airport. Kris Van Cleave has more.

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